<template>
  <div class='perm-container'>
    <el-card class='box-card' shadow='always'>
      <div slot='header' class='clearfix'>
        <b>
          <svg-icon icon-class='route' />
          {{ menuName }}权限列表</b>
      </div>
      <!-- 搜索表单 -->
      <el-form ref='queryForm' :inline='true' :model='queryParams' size='mini'>
        <el-form-item>
          <el-button
            v-has-permission="['sys:permission:add']"
            :disabled='disabled'
            icon='el-icon-plus'
            type='success'
            @click='handleAdd'
          >新增
          </el-button>
          <el-button
            v-has-permission="['sys:permission:delete']"
            :disabled='multiple'
            icon='el-icon-delete'
            type='danger'
            @click='handleDelete'
          >删除
          </el-button>
        </el-form-item>
        <el-form-item>
          <el-input
            v-model='queryParams.name'
            clearable
            placeholder='权限名称'
            @keyup.enter.native='handleQuery'
          />
        </el-form-item>
        <el-form-item>
          <el-button
            icon='el-icon-search'
            type='primary'
            @click='handleQuery'
          >搜索
          </el-button>
          <el-button
            icon='el-icon-refresh'
            @click='handleReset'
          >重置
          </el-button>
        </el-form-item>
      </el-form>

      <!-- 数据表格 -->
      <el-table
        ref='table'
        v-loading='loading'
        :data='pageList'
        border
        size='mini'
        @selection-change='handleSelectionChange'
      >
        <el-table-column align='center' type='selection' width='40' />
        <el-table-column label='权限名称' prop='name' width='150' />
        <el-table-column label='权限标识'>
          <template slot-scope='scope'>
            <el-tag v-if="scope.row.method == '*'" type='info'>*_</el-tag>
            <el-tag
              v-if="scope.row.method == 'GET'"
              type='primary'
            >GET_
            </el-tag>
            <el-tag
              v-if="scope.row.method == 'POST'"
              type='success'
            >POST_
            </el-tag>
            <el-tag
              v-if="scope.row.method == 'PUT'"
              type='warning'
            >PUT_
            </el-tag>
            <el-tag
              v-if="scope.row.method == 'DELETE'"
              type='danger'
            >DELETE_
            </el-tag>
            {{ scope.row.urlPerm }}
          </template>
        </el-table-column>
        <el-table-column label='按钮权限标识' prop='btnPerm' width='150' />
        <el-table-column align='center' label='操作' width='100'>
          <template slot-scope='scope'>
            <el-button
              v-has-permission="['sys:permission:edit']"
              circle
              icon='el-icon-edit'
              plain
              size='mini'
              type='primary'
              @click='handleEdit(scope.row)'
            />
            <el-button
              v-has-permission="['sys:permission:delete']"
              circle
              icon='el-icon-delete'
              plain
              size='mini'
              type='danger'
              @click='handleDelete(scope.row)'
            />
          </template>
        </el-table-column>
      </el-table>
      <pagination
        v-show='pagination.total > 0'
        :limit.sync='pagination.limit'
        :page.sync='pagination.page'
        :total='pagination.total'
        @pagination='handleQuery'
      />
      <el-dialog
        :title='dialog.title'
        :visible.sync='dialog.visible'
        width='700px'
      >
        <el-form ref='form' :model='form' :rules='rules' label-width='120px'>
          <el-form-item label='权限名称' prop='name'>
            <el-input v-model='form.name' placeholder='请输入权限名称' />
          </el-form-item>
          <el-form-item label='URL权限标识' prop='urlPerm'>
            <el-input
              v-model='urlPerm.requestPath'
              class='input-with-select'
              placeholder='例：/system/users'
            >
<!--              <el-select-->
<!--                slot='prepend'-->
<!--                v-model='urlPerm.serviceName'-->
<!--                clearable-->
<!--                placeholder='所属服务'-->
<!--                style='width: 130px;'-->
<!--              >-->
<!--                <el-option label='认证中心' value='auiu-auth' />-->
<!--                <el-option label='系统服务' value='admin' />-->
<!--              </el-select>-->
              <el-select
                slot='prepend'
                v-model='urlPerm.requestMethod'
                clearable
                placeholder='请求方式'
                style='width: 120px;margin-left: 20px'
              >
                <el-option label='不限' value='*' />
                <el-option label='GET' value='GET' />
                <el-option label='POST' value='POST' />
                <el-option label='PUT' value='PUT' />
                <el-option label='DELETE' value='DELETE' />
              </el-select>
            </el-input>
            <el-link v-show='urlPerm.requestMethod' type='primary'>
              {{ urlPerm.requestMethod }}_/{{
                urlPerm.serviceName
              }}{{ urlPerm.requestPath }}
            </el-link>
          </el-form-item>
          <el-form-item label='按钮权限标识' prop='perms'>
            <el-input v-model='form.btnPerm' placeholder='例：sys:user:add' />
          </el-form-item>
        </el-form>
        <div slot='footer' class='dialog-footer'>
          <el-button type='primary' @click='handleSubmit'>确 定</el-button>
          <el-button @click='dialog.visible = false'>取 消</el-button>
        </div>
      </el-dialog>
    </el-card>
  </div>
</template>

<script>
import { add, del, detail, list, update } from '@/api/admin/permission'

export default {
  name: 'Permission',
  data() {
    return {
      loading: false,
      ids: [],
      single: true,
      multiple: true,
      queryParams: {
        queryMode: 'page',
        name: undefined,
        menuId: undefined,
        type: undefined
      },
      pagination: {
        page: 1,
        limit: 10,
        total: 0
      },
      pageList: [],
      dialog: {
        title: undefined,
        visible: false
      },
      form: {
        name: undefined,
        urlPerm: undefined,
        btnPerm: undefined,
        method: undefined
      },
      rules: {
        name: [{ required: true, message: '请输入权限名称', trigger: 'blur' }],
        perm: [{ required: true, message: '请输入权限标识', trigger: 'blur' }],
        method: [{ required: true, message: '请选择请求方式', trigger: 'blur' }]
      },
      disabled: true,
      menu: {},
      menuName: undefined,
      urlPerm: {
        requestMethod: undefined,
        serviceName: undefined,
        requestPath: undefined
      }
    }
  },
  methods: {
    handleQuery() {
      this.queryParams.pageNum = this.pagination.page
      this.queryParams.pageSize = this.pagination.limit

      this.queryParams.menuId = this.menu.id
      this.queryParams.type = this.type
      list(this.queryParams).then(response => {
        const { data } = response
        this.pageList = data.list
        this.pagination.total = data.totalCount
        this.loading = false
      })
    },
    handleReset() {
      this.pagination = {
        page: 1,
        limit: 10,
        total: 0
      }
      this.queryParams.name = undefined
      this.handleQuery()
    },
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    handleAdd() {
      this.resetForm()
      this.dialog = {
        title: this.menuName + '新增权限',
        visible: true
      }
    },

    handleEdit(row) {
      this.resetForm()
      this.dialog = {
        title: this.menuName + '编辑权限',
        visible: true
      }
      detail(row.id).then(response => {
        const { data } = response
        // 处理URL权限
        const urlPerm = data.urlPerm
        this.form = data
        if (urlPerm) {
          // const permArr = urlPerm.split('/')
          const requestMethod = data.method
          const serviceName = urlPerm.substring(1, urlPerm.substr(1).indexOf('/') + 1)
          const requestPath = urlPerm.substring(urlPerm.substr(1).indexOf('/') + 1)
          this.urlPerm = {
            requestMethod: requestMethod,
            serviceName: serviceName,
            requestPath: requestPath
          }
        }
      })
    },
    handleSubmit: function() {
      this.$refs['form'].validate(valid => {
        if (valid) {
          // 两个权限必选一个
          // console.log(this.urlPerm.requestPath, this.form.btnPerm)
          if (!(this.urlPerm.requestPath || this.form.btnPerm)) {
            this.$message.warning('请至少填写一种权限')
            return false
          }

          if (!this.urlPerm.requestPath) {
            if (!this.urlPerm.requestMethod) {
              this.$message.warning('URL权限的请求方式不能为空')
              return false
            }
            if (!this.urlPerm.serviceName) {
              this.$message.warning('URL权限的所属服务不能为空')
              return false
            }
          }

          // this.urlPerm.requestMethod +
          // '_/' +
          if (this.urlPerm.serviceName) {
            this.form.urlPerm = '/' + this.urlPerm.serviceName + this.urlPerm.requestPath
          } else {
            this.form.urlPerm = '/' + this.urlPerm.requestPath
          }
          this.form.method = this.urlPerm.requestMethod
          this.form.menuId = this.menu.id
          if (this.form.id !== undefined) {
            update(this.form).then(() => {
              this.$message.success('修改成功')
              this.closeDialog()
              this.handleQuery()
            })
          } else {
            add(this.form).then(() => {
              this.$message.success('新增成功')
              this.closeDialog()
              this.handleQuery()
            })
          }
        }
      })
    },

    handleDelete(row) {
      const ids = row.id ? [row.id] : this.ids
      this.$confirm('确认删除已选中的数据项？', '警告', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      })
        .then(() => {
          del(ids).then(() => {
            this.$message.success('删除成功')
            this.handleQuery()
          })
        })
        .catch(() => this.$message.info('已取消删除'))
    },
    closeDialog() {
      this.resetForm()
      this.dialog = {
        title: undefined,
        visible: false
      }
    },
    resetForm() {
      this.form = {
        menuId: this.menu.id,
        name: undefined,
        urlPerm: undefined,
        btnPerm: undefined,
        method: undefined
      }
      this.urlPerm = {}
      if (this.$refs['form']) {
        this.$refs['form'].resetFields()
      }
    },
    menuClick(row) {
      this.disabled = false
      this.menu = row
      this.menuName = '【' + this.menu.name + '】'
      this.handleQuery()
    },
    resetPermission() {
      this.disabled = true
      this.pageList = []
      this.queryParams.menuId = undefined
      this.menu = {}
      this.menuName = undefined
    }
  }
}
</script>

<style scoped>
.perm-container {
  margin-bottom: 20px;
}
</style>
